Edgerton's character of Buchanan is a critical role, married to Daisy (Carey Mulligan), who is the love interest for the title character of Jay Gatsby (Leonardo DiCaprio). Isla Fisher will play Buchanan's mistress Myrtle, who plays a vital part of the book's ending. Luhrmann sent Deadline a picture of the actor in character (at left) and revealed that Edgerton perfectly fits the role.

In casting Tom one had to find an actor who could credibly be (as Fitzgerald describes him) "one of the most powerful ends that ever played football at New Haven," had five-star acting chops and in the big dramatic showdown scenes between Gatsby and Tom, hold the screen against Leonardo DiCaprio, in the appropriate age group. Any wonder, it has been a long and thorough journey. The simple truth is that Joel came into our rehearsal space in New York and fulfilled all of the above criteria, and then some.

The Great Gatsby starts shooting in Australia this August (yes, in 3-D), and will open possibly in 2012. Tobey Maguire will play Nick Carraway, the book's narrator, and Australian newcomer Elizabeth Debicki will play Jordan Baker, Daisy's long time friend.